Internal-combustion engine



1.1. SCHILLER. -INTERNAL COMBUSI'ION ENGINEa APPLICATION FILED MAR. I01920- Patented pf. 25, 1922,

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In... 'Hun 1.1. SCHILLER.

. INTERNAL coIvIBusIIoN ENGINE.

APPLICATION E|LED MNR. 10,1920.

A1. J. SCHILLER. INTERNAL COMBUSTION ENGjNE.

APPLICATION-FILED MAH; 1'0. 1920i' Patentedv Apr, 25, 1922.

3 SHEETS-SHET-li. I

.cylinders 12 and a Water-jacket '13 A the cylinder andcombustion.-cl1amber. The

JOEE' 3. SCHLLER, 0F KCG, LLIINOIS.

' E'TERNAL-CDMB'USTIN ENGNE.

Application led March 10, 1920; Serial 323e. 364.7432.

To al?. fwL-omfit may concern.:

lle it known that I, JOHN' J, klemmen, a citizen of the United States,and a resident of Chicago, in the county` of Cook and State of Illinois,have invented certain new and useful Improvements in InternahCombustionEngines, of which the following is a` line 3-3 of Fig. 2. Fig. 4 is adetail or. one

of the removable cylinder-linings Fig. 5 is a perspective of one or thevalves.

Theengine comprises a crank-shaft 6, a crank-case 7 provided withbearings 8 for the crank-shaft, a body 9, usually a casting, secured tothe crankcase by bolts 10 and containing the combustion-chambers 1l,

invention is illustrated as applied to a four cylinder engine of theiour cycle type, but it will be understood that it isapplieable t0 anymulti or single cylinder motor and that a description of the invention,as applied to one cylinder. will be sufficient. The engine body isprovided with an inlet-port 14 for conducting combustible-fuel vinto thecombustion-chamber 1l and an exhaust-port 15 for the escape of theproducts of combustion from said chamber. Ignition-means is eX-emplified by a spark-plug: 16 of usual construction. A water-inlet 17 tothe waterjacket is connected to one side of the body 9 andan outlet-pipe18 is secured to the top of said body. The cylinder 12 and walls ofi thecombustion chamber and water jacket are integral. A cylindrical liner i9forms the working-surface for the slidable piston 20. Said piston isconnected by a pitman 21 to a crank on the-shaft (i in usual man ner.The liner 19 is provided witha screwthread` 2Q for engaging acorresponding; thread in the. cylindricaljwall 12 of the body 9. Thebody is shouldered, as at 23,

around to form a seat 'for packingA 24 which is interposed between theupper end of the liner and the shoulder to form a {luid-tightconnection. An advantage in providing the cylinder with a' liner 19 isthat the liner re ceives the Wear and AWhenit becomes defective, forexample, if it becomes scored, it can be unscrewed from the body andrepaired or easily replaced.

The improved fluidcontrollingl mecha nism comprises inlet and outletvalves subst'antially the saine in construction. Each consist of twocooperating' members 25 and 2G both of which are slidable relatively tothe body and relatively to each other. A. guide-way 27 is formed in thecasing for each vulve and intersects the port which the valve isdesigned to control. The outer member Q6 is substantially rectangularand ts and slidesy longitudinally in the guideN Way 27. The inner member25 is slidable in the opening 28 which is formed in member- 26 in whichit is'held by tongue-and-groovc connections 29 between the sides of themembers respectively. Both members of `the valve are adapted to Work inthe port to be controlled thereby so that the opening and closing or'the port will bedependent upon the movement of both members. A `groove30 is formed in thel inner edge of the top of the member 26 and a rib 81on the end of member 25 is adapted to enter said groove.v

This tongue-and-,frroove form a lapping con-- nection between thememberswhich permits relative movement of the members While the portcontrolled by the valve remains closed.

The outer valve member 26 is operated by a pitman 32 pivoted to a lug 33on said ineinber and an eccentric 34 on a shaft 35.1, Member 25 isoperated` by pitman 36 pivoted, at 37, 'to said member and an eccentric38 on shaft The latter is operated from crankshaft 6 and in. suitablytimed relation with respect to the piston by a pinion 39 on thecrank-shaft and meshingr with a geari() on the valve-opcratin`;r shaftThe inlet valve is generally indicated by the numeral 41 and theexhaust-valve is generally designated 4Q. There is a valvesluitt 35 ateach side of the @sank-casing:l and these shafts are similarly drivenand similarly connected to the valves operated thereby.

lllfliile the engine is running, the sli-aft 435 will be, continuouslydriven and the oppovsitely disposed eccentrica 2li and 38 on theyalvebperating shafts will operate 'the meinbersor each valve relativelyto one another. Assumingr the engine to be at the commence.- ment oi' anintake-Stoke, the exhaust and inlet valves will be dosed, as shown inFig. 2. The occ-,entries 34 and 88 will ythen move the outervalve-member 2G upwardly and the inner member 25 oic the inlet valvedo\vn wardly, and ythe. port 14 will open for the :ulmission otcombustible fluid during` the intake-stroke andy until the valveemembersare again lapped at the end ol said stroke. During the v"intake stroke`the members of inlet valve 4l will both continue to'move in oppositedirections and open and close the admission port 14., Duringn thesucceeding,r compression and power strokes, the inlet and exhaust valveswill both 'be closed. During the succeeding scavening stroke, the

- exhaust-valve will open and close.

'lhe invention exemplifies an improved valve consisting' ofsimultaneously an'd relatively movable members which make it possible toprovide eliicient openings tor the passage of fluid as the result of acomparatively short stroke, so thatv the valve-menibers may move ateomparativel)v slow speed; and so that the),r may be operated b veccentrics, if desired; also an improved engine in which provision ismade for replacinY thel operative portion of the cylinders.

The invention is not to be understood as restricted to the details setforth, since these may be modified within the scope of the tively,

groove connect-ions between the sides ofthe miese? and integral tonguesformed to intertit, and e mechanism for simultaneously shifting both ofsaid members in opposite directions to open and close the port.

2. In an internal combustion engine, the combination of a cylinder, a.casing' having a port therein, of a valve comprising a pair ofrelatively slidable 4plates ol' substantially the, same thickness, theeasing having a slideway therein exteinli'ngy transversely of the port,both sides of both plates being 'formed to engage the sides of thesliflewajvvrespeo interlittinig` integral tongue and plates, so that onewill slide inthe other, and mechanism tor simultaneously shitting bothof the plates in opposite directions to open and elose the ort.

y i @HN il. SCHXSJLER.

